It refers to an audio system that uses one or more processors to process a sound signal on three different paths. The three paths are on either channel are then combined in a mixer producing a left and a right signal that mimics the quality of surround sound.

The system would essentially allow Apple to pack a complete surround sound system into the compact and portable MacBook, making it better for watching TV shows and films.

“A virtual acoustic system is one that gives the user the illusion that sound is emanating from elsewhere in an indoor or outdoor space than directly from a loudspeaker,” explains Apple in the patent.

“Audio signal processing for virtual acoustics can greatly enhance a movie, a sports even, a videogame or other screen viewing experience, adding to the feeling of ‘being there’”.

Image: US Patent and Trademark Office

The patent does note that, as with any virtual acoustic simulation, there are bound to be errors that pull the listener out of that surround sound space by alerting them to the physical source of the sound.

However, Apple has a plan to combat this by exaggerating the strength and direction of the early reflections and the reverberation levels in the audio to create a better perception of depth.

Hannah joined Trusted Reviews as a staff writer in 2019 after graduating with a degree in English from Royal Holloway, University of London. She’s also worked and studied in the US, holding positions …

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